Abstract : Table of Contents: Experimental determination of heat exchange intensification in a biangular channel with local expansion of the conduit cross section, Some results of an analysis of experimental data on the intensification of heat emission in channels, The calculation of thermal characteristics of heat exchange devices, Some results of wind tunnel tests of plane diffuser cascades with low rates of flow, Results from an experimental investigation of a diffuser with additional flow pressure at the outlet, Coefficients of heat transfer and hydraulic resistance as functions of longitudinal and transverse nonisothermicity in turbulent motion of fluid under internal-problem conditions, Application of electrothermal analogy to study of heat transfer in streamlined bodies of arbitrary shape.